Achilles heel chance for -res procs help rad blast out a lot, try snap some up before Rad Blast goes live for Blasters. Also get some procs in Neutrino Bolt, they seem to make that power much more attractive than the other tier 1s. Not that big a fan of rad myself so not sure what to suggest beyond this.
Defiant EU
Quaver: Kinetics/Sonic Defender
Semiquaver: Sonic/Kinetics Corruptor
Well, with rad blast there's a few things you can do to actually make the set quite effective. Generally, the key to remember is rad blast is kind of a jack-of-all trades blast set, it has a good mix of AoE capability and ST capability but excels at neither. So if you're busy comparing your AoE capability to fire and your ST to sonic or ice, you're generally always going to be unhappy. Also, remember that your AEs, unlike rain of fire/ice/blizzard can cause critters to scatter, which may or may not be an annoyance. The other thing to remember is rad blast is generally faster recharging, so while your dmg numbers may be smaller, you throw out quite a few of them.
That said, there are a few things you can do to greatly improve the effectiveness of the set.
First off, I use the AEs, generally, after dropping sleet on my rad/cold corr, I drop irradiate followed up by newt bomb then position myself for a good electron haze (target a critter on the opposite side of the spawn and jump back to max range and let loose to hit a lot of things). The numbers aren't super impressive but they do whittle things down and by the time you finish these three things the spawn is either A) dead, B) still alive but your irradiate, newt, electron cycle is recharged. If you combine the effects of enervating field+am you can actually churn out some decent numbers in addition to flooring pretty much everything's defense (without needing RI).
Secondly, my ST attack chain is newt, cosmic, newt, xray, repeat (if your global recharge is too low to keep this up you can throw ehaze in the cycle, its perfectly useful as a ST attack). Newt bolt is actually quite effective if you load it up with procs, to the point where it actually becomes respecable dps. If you throw a apocalypse, shield breaker, lady grey and achilles proc along with 2 nuc HOs (combined with +rchg set bonuses from elsewhere) newt bolt will always be available as a quick animating filler that does an awful lot of procing and is very cheap to use. You could also replace a nuc HO for the pvp IO proc as well but right now the cost of those is around triple that of the apoc proc so I don't see the cost to return ratio being worth it atm. You won't see huge numbers, but its a pretty constant dps stream, especially when the achilles proc kicks in.
Third, slot -res achilles in procs in everything, they're great in newt bomb, bolt, xray, irradiate. You don't need to worry about getting maximum recharge or acc slotting in the powers because they all come back so fast and you can make up for it with global +rchg (which will help your AM as well) and rad's -def debuffs and innate higher to-hit. The only two rad blasts I don't have achilles in are cosmic burst, which I have 5 slotted decimation and the analyze weakness acc/rchg because it does have a somewhat substantial recharge time and its stun effect is important enough to me that I like it having a higher accuracy just in case I need it. I also have the +rchg proc in electron haze instead of achilles (but I mostly use it to keep my heat loss/hasten near perma).
With all the -res and -def you throw around, especially with AEs, you'll find that while your damage might not be the highest on the team you improve the overall dmg of the team due to the fact everyone else hits harder and more reliably, especially those sidekicking moochers.
Generally, I skip the nuke (while fun it's usually counterproductive to my team protecting duties), aim (because I skipped the nuke) and proton volley (I dislike snipes despite its cool sound effect). Depending on how tight your build is you might be able to fit aim in there, but personally I'd recommend dark mastery and take og (to stack with cosmic's stun and give you the ability to stun bosses) and the wonderful little soul drain power which can become quite impressive after you get a good chunk of +rchg. Perma or near perma-soul drain will go a long way to upping your dmg output and being considerably more useful (IMHO) than aim and will mesh well with the fact you'll be in melee anyway to use irradiate (and if you use it after irradiate, will hit a lot of things). Dark embrace will also go a long way towards making you more durable as well as you will occasionally get bruised when hanging out in melee. Normally defender types go for power mastery for PBU, but I find PBU isn't all that great for radiation emission.
Achilles' Heel procs and all are good. The most successful technique I have for challenging groups of foes is to: ask the tank to herd a nice bunch around a corner, OR toggle pull a nice group around a corner yourself. Enervating field is a quick activation you can put in place and duck around a corner. I use choking cloud, so the group can be affected before they get line of sight of my little rad/rad. Then after getting radiation infection in place ASAP, I unload everything, Lingering Radiation, Irradiate, cosmic burst a particular troublesome victim.
I put procs in choking cloud, too. You can literally manhandle good sized groups with this technique. When you have EM Pulse up, the holds stack and it's golden. After the greeting, pick away at the group, AoE the group; how long they last is a product of how many damage dealers you have.
Triumphant Defenders Forever
Psylenz FF/Psi, ArticQuark Storm/Rad, Symon BarSisyphus Bots/psn, Max VanSydow Thugs/Dk, Cyclone Symon Bots/stm, Blue Loki Ice/Cd, Widow 46526
HelinCarnate:OMG it is so terrible. I have the option to take 3 more powers but no additional slots. Boo F'ing hoo.
No, not those pointers!
I have a level 32 Rad/Rad defender. Help me out here and suggest some neat tricks I can use now or in the future (later levels). It seems that I run into three common problems:
1. I set up my anchors and people know not to touch it, but then I have very little else to do except tiny orange numbers.
2. I set up my anchors and the people don't know not to touch it (even after being told) and so I stop debuffing and do measly orange numbers.
3. I set up my anchors and the beastie or beasties with the debuff aoe on them hide outside the main cluster of baddies, so I slap them into place with the old Nemesis staff, then proceed to do nano orange numbers.
I know I'm not a blaster or a tank. I'm support. I know I chose this set as a debuffer for AVs. But is there anything.... anything else to this combo? Did I miss something in the guides? Am I just defender disabled? Seems that I am so passive.
Anyone with some experience in the Rad/Rad department that can lend me a few neat tricks? Almost every other combo has a little golden ticket hidden in there somewhere. There's gotta be one for Rad/Rad... Right?